Improvement in bakers ovens



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J. BIEDER.

BAKERS OVEN.

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Patented Nov. 2, 1875.

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L'BlEDER. BAKERS OVEN Patented Nov .2,1875.

' Hyd- R m m N-FETERS. PHOTO LTHOGRAFHER IJ'NITED STATES PATENT Quinn JACOB BIEDER, OF ASHTABULA, OHIO.

IMPROVEMENT IN BAKERS OVENS Specification forming part of Letters Patent No. 169,404, dated November 2, 1875; application filed August 26, 1875.

10 all whom it may concern Be it known that I, JACOB BIEDER, of Ashtabula, Ohio, have invented new and useful Improvements in Bakers Ovens, of which the following is a specification,- reference being Fig. 3 is a sectional view of the register.

In the accompanying drawing, A represents the furnace connected with the flue a, which connects with the fines b, leading into the flues c and d, so that the products of combustion follow the courses indicated by the arrows in Fig. 1. Above and opposite the front end of the lines 01 the ends of the several plates are. recessed .at corresponding corners, as hereinafter set forth, forming a vertical flue, B, at each of the front corners of the device. Through the flues B the products of combustion ascend until they reach the roof N, which not being recessed the said products are distributed over the plate I, which is provided with the cleats e, which form with the roof and plate I channels, through which the products of combustion are led over the upper surface of the plate I to the exit-aperture 1. Immediately above the furnace A is placed the tile-plate or oven-floor D, having its lower surface in close relation to the upper surfaces of the walls of the furnace and the horizontal flues, its edges impinging in an air-tight manner against the side and end surfaces of the walls X, save at the two front corners of the plate, where it is provided with the recesses a. Upon the upper surface of the plate D are placed the tiles 0, as shown, the recesses a being bordered with tiles, so as to prevent the ingress of smoke. Above the plate D is placed the plate E, its edges in air-tight relation to the walls X, its lower surface resting upon the upper surfaces of the tiles 6, and its two front corners recessed correspondingly to the floor D. Above and in contact with the plate E is placed the brick floor H, having the corner-pieces m recessed, as shown, to correspond with the recesses in the plates below. The smoke-arch I is placed above the floor D, its side edges entering the wall X, so that the-recesses in its lower front corners come in close and air-tight contact tothe recesses m, the front and rear edges of the roof touching the walls also in an airtight manner. The upper surface of the smokearch I is provided with the cleats 0, upon which the smoke-tight roof N rests, forming the flues n, through which the smoke is led to the exit, as shown by the arrows in Fig. 7, a damper of proper construction being provided to open or close the exit P.

Thus it is clear that the products of combustion pass completely under the plate D; thence 'up through. the fines B, and thence over the smoke-arch I, finally out of the exit P. This movement of the products of combustion thoroughly warms the device, which presents two spaces for cooking or baking, viz., above the tile-plate D and upon the hearth H. It is clear that the presence of the hearth H tends to retain and equalize the heat while the heating power of the products of combustion are thoroughly employed.

What I claim as my invention, and desire to secure by Detters'Patent, is-

1. In a bakers oven, the combination of the lower horizontal dues to b c (I with thevertical flues B and upper horizontal flues it, formed in the manner for the purpose specified.

2. The combination of the several separate plates D E, hearth H, and smokearch I, recessed at their corresponding corners, for the purposes shown and set forth. 1

In testimony that I claim the foregoing improvements in bakers ovens, as above described, I have hereunto set my hand and seal this 9th day of August, A. D. 1875.

JACOB BIEDER. [L. s] Witnesses: r

OMAR GILLETTE, W. S. BURNHAM. 

